Deck 11: Clay Brick and Tile

Question 1

Briefly describe the properties and uses of firebrick.

Answer 1

Firebricks are made from special clays containing alumina-silica with traces of iron oxide, and alkalis that are very uniform in structure and therefore able to withstand high temperatures. Firebricks are generally larger than other structural bricks and are often hand molded. They find use in fireplaces, chimneys and kiln construction.

Question 2

Briefly describe the properties and uses of brick pavers.

Answer 2

Brick pavers are solid clay units whose selection is based on weather resistance, abrasion resistance, and appearance relating to bond patterns, size and tolerances. Pavers come in two thicknesses: 1-½ in., commonly used for pedestrian situations, and 2 -1/4 in. for heavier traffic/load conditions.

Question 3

____ refers to the ability of a clay masonry unit to resist damage from freeze and thaw cycles and moist conditions .

A) Compressive strength
B) Weatherability
C) Absorption
D) Durability

Answer 3

D

Question 4

____ are clays that have been subjected to high pressures, causing them to be relatively hard.

A) Shales
B) Surface clays
C) Fireclay
D) Terra-cottas

Question 5

Describe the color and finish of agricultural terra-cotta.

Question 6

Bricks are classified as ____ if they have cores whose area does not exceed 25 percent of the gross cross-sectional area of the brick.

A) hollow masonry
B) standard masonry
C) solid masonry
D) standard modular

Question 7

The ____ of clay masonry units depends on the clays used, burning temperature, and the method of controlling it during the burn.

A) color
B) fire resistance
C) texture
D) heat transmission

Question 8

The ____ is most widely used for forming bricks.

A) soft-mud process
B) stiff-mud process
C) dry-press process
D) stiff-dry process

Question 9

Briefly describe the three forms clay can be found in.

Question 10

Explain the property of compressive strength as it pertains to clay.